Method for Image Copyright Protection Based on Construction of Highly Robust Watermarks
Yuliya Vybornova · 2020
In this paper, a new approach to multimedia data watermarking is proposed. The key idea of the method is to embed a specially constructed protective information instead of a simple bitmap or a bit sequence. A two-dimensional complex spectrum is constructed on the basis of the binary sequence, which serves as a primary watermark used when verification. Via discrete Fourier transform a highly robust watermark in the form of a noise-like raster image is calculated and embedded into the carrier data. The aim of the experimental research is to analyze the applicability of the method in the task of copyright protection for raster images. It is shown that the proposed noise-like watermarks can be imperceptibly embedded into the spatial domain of the protected image using the strategy of additive watermarking. Furthermore, the study on robustness has shown that resulting method demonstrates clear advantages over existing analogues.